[单选题]
The objective of a telzj4x yttvq)5c+ r1f :s1 /tyyhescope has a foj*h8 lf( 9ggupcal length of 200 cm and its eyepiece has a focal lghl9u g8(*p fjength of 1.1 cm. What is the magnification of this telescope when viewing an object at infinity?
A. 20
B. 0.0050
C. 200
D. none of the given answers
Post time 2024-1-26 22:03:25